1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zarrin [17]
2 years ago
5

if tom spins the spinner 80 times work out an estimate for the number of times the spinner will land on 3 please help me

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
7 0

Answer:

The estimated number of times the spinner will land on 3 is 20.

Step-by-step explanation:

The complete question is:

A four-sided spinner is provided. If Tom spins the spinner 80 times then work out an estimate for the number of times the spinner will land on 3.

Solution:

Assume that the four-sided spinner is unbiased.

That is all the four outcomes are equally likely to be selected.

The probability that the spinner lands on any of the four numbers is:

P(1) = P (2) = P (3) = P (4) = 0.25

It is provided that Tom spins the spinner <em>n</em> = 80 times.

The spinner can land on any of the four numbers independently.

The random variable <em>X</em>, defined as the number of times the spinner lands on 3, follows a Binomial distribution with parameters <em>n</em> = 80 and <em>p</em> = 0.25.

The expected value of <em>X</em> is:

E(X)=np

        =80\times 0.25\\=20

Thus, the estimated number of times the spinner will land on 3 is 20.

You might be interested in
Select the statement that correctly describes the expression below.
ziro4ka [17]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If I owe you $1.76 in overtime pay, you receive $19.50 for each hour of OT. How many hours overtime are you owed?
Lady_Fox [76]

Answer: 0.09 hours

Step-by-step explanation:

You are owed $1.76 in overtime pay.

The hourly rate for overtime is $19.50 per hour.

To find the number of hours owed, you need to divide the amount owed by the amount owed per hour.

The number of hours you are owed is therefore:

= Amount owed / Amount owed per hour

= 1.76 / 19.50

= 0.09 hours

6 0
3 years ago
2(4y-5)=70<br><br>how u do this​
steposvetlana [31]

Answer:

Step-by-step explanation:

First you distribute so two times 4Y is 6Y then you multiply the two in the five which gives you 2Y -5 equals 70

3 0
3 years ago
Read 2 more answers
(1, 3) and (-3, -5)<br> write a linear equation given the two points
Firlakuza [10]

Answer:

y = 2x + 1

Step-by-step explanation:

1. Find the slope;  (change in y values)/(change in x values)

Slope = (-5 - 3)/ (-3 - 1) = -8/-4 = 2

2. Find the y-intercept (b) using  the slope intercept formula: y = mx + b

    m = 2 and using point (1, 3) , solve for "b"

       y = mx + b

       3 = 2(1) + b

       3 = 2 + b

      1 = b

3.  Write the linear equation: y = 2x + 1

7 0
2 years ago
Y=5x+2 and 3x=-y+10 what is the soluion of equation
Harlamova29_29 [7]
I hope this is the answer you want

4 0
3 years ago
Read 2 more answers
Other questions:
  • 4x10^7 is ? Times as much as 4x10^3
    9·2 answers
  • Please someone help me!!!!!!​
    14·2 answers
  • Simplify c- 3c + 9<br> A. -4c + 9<br> B. -5c – 9<br> C. -2c +9
    9·2 answers
  • Similarly please help
    15·1 answer
  • A gallon of water weighs 8.34 pounds. The Rhoads family has a round, 12-foot diameter, above-ground pool. How much weight is add
    14·1 answer
  • A car dealership sold 36 cars in April. The dealership wants to increase the number of cars sold by 40% in May. How many cars wi
    15·1 answer
  • The first side of a triangle measures 4 in. less than the second side, the third side is 3 in. more than the first side, and the
    12·2 answers
  • Which equation represents the nth term of the sequence {2,1,-4,-7...}.
    13·2 answers
  • Please help me with this ixl please
    7·1 answer
  • Please help.<br> I need to know if the sequence is arithmetic
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!